Improvement in surfacing-planes



G. E. FRANKLIN.

Surfacing Planes.

Patented May 6,

No.'l38, 625.

AM. RHOTlI-L/THOGRAPH/C ca 2/] (mama's P/mcsss UNITED STATES GEORGE E.FRANKLIN, OF NATIOK, MASSACHUSETTS IMPROVEMENT IN SURFAClNG-PLANES.

Specification forming part of Letters Patent No- 1384525, dated May 6,1873; applic March 8, 1873.

To all whom it may concern.-

Be it known that I, GEORGE E. FRANKLIN, of Natick, in the county ofMiddlesex and State of Massachusetts, have invented an Improvement inSurfacing-Planes; and I do hereby declare that the following, taken inconnection with the drawing which accompanies and forms part of thisspecification, is a description of my invention sufficient to enablethose skilled in the art to practice it.

In using dies for punching or cutting shoe soles and uppers, and otherstock, it is customary to use blocks of wood with the end of the grainuppermost, the top surface being faced oif for smoothness. As such ablock becomes too much worn for practical use, it is cut down with anadz to a plane below the lowest depression worn by the dies, and is thensurfaced off with a smoothing-plane. This method of surfacing a block isvery slow and laborious, and does not result in procuring a uniformface.

My invention has reference to a method of surfacing such a block bymeans of a plane alone; and for this purposeI make a plane having astraight bottom face and a straight side face, andproj ecting throughsaid adjacent faces, and adjacent to the angle of such faces,two cuttersor cutting-edges, one edge being andcutting horizontally, and the otherbeing vertical and cutting vertically, the cutting-edges being in thesame vertical plane, right-angular to the side face of the tool, thisside face having a gage to regulate the depth of cut of both cutters orbits. This plane is used by beginning at one side of the block andsetting the gage to the depth to be cut, in order to reach the deepestdepressions, and resting the gage upon the top of the block, with thevertical cutter against the side of the block. Then, as the plane isworked, the vertical cutter planes off the block, while the horizontalcutter joints or cuts across the grain, and smooths the top surface ofthe block, the plane being thus used until the block is planed acrossits whole face. It is in this construction of the surfacing-plane thatmy invention primarily consists.

The drawing represents a tool embodying the invention.

Figure 1 is a side view of the plane. Fig. 2 is a top view thereof. Fig.3 is a bottom view. Fig. 4 is a cross-section on the line w w.

:1 denotes the bottom plate of the plane; b,

PA'rEN'r i-.: QE.

1 ion filed an upright, extending from on edge of said plate; 0, thethroat through w 1 oh the cutters or plane-bits extend and the 0 psescape. d e denote the two cutters, set 1 an angle to both plates at b,and at a right angle to each other, the cutter d resting upon abed-piece, f, and its cutting-edge extendin through the throat c, and soas to be in a h izontal plane just beyond the bottom face f the plate a,and the cutter e sitting ed gewi on top of the cutter (I, and with itsinner fac against abedpiece, g, the cutter 6 also exte ding through thethroat 0, but its cutting-e ge being vertical and standing just beyond 1he outer face of the upright b, the two cuttin edges standing,therefore, at a right angl and being in effect one cutting-edge, bent asto be one part vertical and one part h izontal. The two cutters are heldby an an ilar clamp, h, which is pressed down against a screw, 73,passing through a ar, 70, and the clamp It has a shoulder, l, eXte dingover the edge of the cutter 6, so thatv n t only are the two cuttersforced against the )ed-faces, but the cutter c is pressed againsi thecutter d, bringing their cutting-edges together and firmly securing themin positi On the outer face of the u 1 fight I) is fastened a gage, m,which, by scr 1 s n and slots 0 is made adjustable, and t s gagedetermines the depth of cut of the lwo cutters.

As the tool is used, as be re described, the edge cl cuts across therain, and the edge c with the grain, and-b the action of the two cutterstogether the w ,rk is very rapidly effected, and the block uni rml ysurfaced or resurfaced. 1

I claim- 1 I 1. The surfacing-plane, for Lied with two cutters, d and 6,having thei 1 edges in line and standing one in horizont l and the otherin vertical position, combined with the gage m, on the vertical face ofthe lane, substantially as described. l 1

2. In combination with the clamp h,-for holding the cutte as shown anddescribed. i

3. The clamp, formed with he shoulder l, for pressing the cutter a down0 the cutter d, substantially as shown and d cribed.

GEO. E. .EANKLIN.

' o cutters, the substantially Witnesses FRANCIS GOULD,

l M. W. FROTHINGHAM. l

he cutters by

